diff options
Diffstat (limited to 'libraries/base/Data/Complex.hs')
| -rw-r--r-- | libraries/base/Data/Complex.hs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libraries/base/Data/Complex.hs b/libraries/base/Data/Complex.hs index 734b2fabf4..4d9d2d7981 100644 --- a/libraries/base/Data/Complex.hs +++ b/libraries/base/Data/Complex.hs @@ -104,13 +104,13 @@ cis theta = cos theta :+ sin theta -- | The function 'polar' takes a complex number and -- returns a (magnitude, phase) pair in canonical form: --- the magnitude is nonnegative, and the phase in the range @(-'pi', 'pi']@; +-- the magnitude is non-negative, and the phase in the range @(-'pi', 'pi']@; -- if the magnitude is zero, then so is the phase. {-# SPECIALISE polar :: Complex Double -> (Double,Double) #-} polar :: (RealFloat a) => Complex a -> (a,a) polar z = (magnitude z, phase z) --- | The nonnegative magnitude of a complex number. +-- | The non-negative magnitude of a complex number. {-# SPECIALISE magnitude :: Complex Double -> Double #-} magnitude :: (RealFloat a) => Complex a -> a magnitude (x:+y) = scaleFloat k |